201203793 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種馬達，特別關於一種馬達及使用該 馬達之電子裝置。 【先前技術】 由於石化燃料的持續使用’導致廢氣排放量越來越 多，使得地球的溫室效應愈來愈明顯，也造成全球的氣候 異常，因此，許多廠商已逐漸開發以替代能源（例如電能） 來代替石化燃料的電動載具，例如，電動汽車、電動機車、 電動腳踏車等’這些將成為未來最普遍使用的交通工具之 〇 電動載具係以電能來驅動馬達，進而帶動輪胎轉動， 以達到移動的目的’因此，馬達的選用為相當重要的考慮 因素。傳統的永磁馬達，無論是有刷馬達或是無刷馬達， 大σ卩份是採用徑向磁通結構或是轴向磁通結構。 请參照圖1Α所示，其為一種習知的徑向磁通馬達1a 之結構示意圖。徑向磁通的意思為馬達之定子線圈產生磁 力線的方向係垂直於馬達的軸心方向。由於徑向磁通馬達 的内部同時存在磁石與大量的導磁材料，但是，在磁石與 導罐材料之間的磁路（magnetic circuit)設計上受限於轉 子石夕鋼片的結構，因此，常會有漏磁現象發生，致使馬達 的轉矩密度受到了限制，無法提供較大的扭力輸出。 再者，如圖1B所示’其為一種習知的軸向磁通馬達 201203793 1 b之結構示意圖。軸向磁通的意思為 — 磁力線的方向係平行於馬達的轴心方^ =疋子線圈產生 m ^ . 向。軸向磁通馬達因 ，用=的導磁材料，所以，磁頓轉的現象較不明顯。但 疋，其扁平化的結構設計於轉動時， 、 象，造成馬達軸心與軸承壽命縮短。 生偏擺現 此外’習知另一種永磁馬達係具有横向磁通結構，橫 向磁通的馬達在磁路設計上可實現三 磁通馬達具有較高轉矩密度及較少漏磁現象:優點而= 適合使用於低轉速、高轉矩之電動载具上。 ’’ 乂 ^照圖K：所示’其為橫向磁通馬達之單相定子單 5 力線的路徑示意圖。其中，箭頭A的方 向顯不為磁力線之路徑。橫向磁通馬達包括-定子單元i mr2。定子單元1包括二定子鐵心”、一線圈 1繞線鐵心，而轉子單元2包括一轉子鐵心21及 ::久磁石22。其中’線圈12設置於二定子鐵心U之間。 另外’轉子鐵心21係與定子鐵心u相對設置，且二永久 磁石22分別設置於二定子細11與二轉子如21之間。 '、而為了實現;^向磁通馬達之三維磁通結構，必 =…轉子鐵心14之間分別設置一永久磁石 以！磁力線’使馬達具有三維磁通的結構，因此， 達需」吏用較多的永久磁石22。此外，永久磁石 装认置於疋子鐵心11與轉子鐵心14之間，因此，組 因永久磁石22具有磁性而使組裝不易。此外，這 ;δ又计也增加馬達的體積及重量。 201203793 因此，如何提供一種馬達及電子裝置，可減少磁性元 件的使用量，且可縮小馬達的體積及重量，並具有組裝容 易的優點，已成為重要課題之一。 【發明内容】 有鑑於上述課題，本發明之目的為提供一種可減少磁 性元件的使用量，且可縮小馬達的體積及重量，並具有組 裝容易的優點，以適用於電動載具之馬達及電子裝置。 為達上述目的，依據本發明之一種馬達包括至少一定 子單元以及至少一轉子單元。定子單元具有二定子鐵心及 一線圈，線圈設置於該等定子鐵心之間。轉子單元環設於 定子單元，轉子單元具有至少二轉子鐵心及至少一磁性元 件，磁性元件設置於該等轉子鐵心之間，並與線圈相對設 置，該等轉子鐵心分別與該等定子鐵心相對設置。 在本發明之一實施例中，定子單元更具有一繞線鐵 心，該等定子鐵心及線圈係環設於繞線鐵心。 在本發明之一實施例中，定子單元更具有複數導磁元 件，環設於該等定子鐵心，並設置於線圈與轉子單元之間。 在本發明之一實施例中，該等定子鐵心具有複數凹 槽，該等導磁元件分別設置於該等凹槽。 在本發明之一實施例中，當馬達具有複數定子單元 時，該等定子單元係相疊且於徑向上錯位設置。 在本發明之一實施例中，當馬達具有複數轉子單元 時，該等轉子單元係為相疊設置。 201203793 在本發明之一實施例中，馬達更包括一控制電路，控 制電路同時驅動該等定子單元之該等線圈的其中之二。 在本發明之一實施例中，馬達更包括一殼體及一軸 心。殼體與轉子單元連接。軸心穿設於定子單元及轉子單 元。 為達上述目的，依據本發明之一種電子裝置包括一作 動單元以及一馬達。馬達係驅動作動單元，並包括至少一 定子單元、至少一轉子單元、一殼體及一軸心。定子單元 Φ 具有二定子鐵心及一線圈，線圈設置於該等定子鐵心之 間。轉子單元環設於定子單元，轉子單元具有至少二轉子 - 鐵心及至少一磁性元件，磁性元件設置於該等轉子鐵心之 . 間，並與線圈相對設置，該等轉子鐵心分別與該等定子鐵 心相對設置。殼體與轉子單元連接。軸心穿設於定子單元 及轉子單元。殼體與轉子單元連接。 承上所述，因依據本發明之馬達及電子裝置的轉子單 元係環設於定子單元，且轉子單元之磁性元件係設置於轉 ® 子鐵心之間，並與線圈相對設置。藉此，可使馬達及電子 裝置之轉子單元與定子單元形成三維磁路的結構，使本發 明之馬達及電子裝置具有較高轉矩密度及較少漏磁現象 的優點。另外，磁性元件係設置於二轉子鐵心之間，與習 知永久磁石分別設置於定子鐵心與轉子鐵心之間相較*本 發明之馬達及電子裝置具有較少磁性元件的使用，且可縮 小馬達的體積及重量，使電子裝置輕量化。也因磁性元件 係夾置於二轉子鐵心之間，使本發明之馬達及電子裝置組 201203793 而造成組裝困難，使 I時’不會因磁性元件的磁力影響， 本發明具有較容易組裝的優點。 【實施方式】 以下將參照相關圖式，說明依本發明較佳實施例之一 種馬達及電子裝置，其中相同的元件將以 加以說明。 j爹…、付琥 請參照圖2A及圖2B所示，其分別為本發明較佳實施 例之-種馬達3之分解示意圖及組合示意圖。馬達3包括 =-定子單元31及至少一轉子單元32。為了清楚說明 馬達3的結構，圖2A與圖2B係以一定子單元與一轉子單 即單相）為例。當然’實際應用時，可使用多組定子 單兀與轉子單元，並配合多相控制而組成一馬達。本發明 之馬達3可應用於驅動電動設備，例如電動汽車、電動機 f、或電動腳踏車的驅動上’或是使用於具有低轉速，但 高轉矩的動力應用上。 定子單元31具有二定子鐵心扣及一線圈312，線圈 312係設置於定子鐵心311之間。於此，二定子鐵心如 平行設置’並夾置線圈312 _。定子鐵心311包含導磁 材料，例如軟磁複合材料（s〇ft magnetic c〇mp〇site， SMC)，其材料可選自純鐵、錄、始金屬、鐵錄合金、鐵 錄钥合金、軸合金、鐵基非晶合金、鐵基奈米晶合金、 軟磁鐵氧n㈣粉碎錢成的粉末及其組合。 另外，疋子單元31更可具有一繞線鐵心313，而定子 201203793 鐵〜311及線圈312係環設於繞線鐵心313。換言之，綽 線鐵〜313係设置於定子鐵心311與線圈312之中間部 刀。為了清楚制定子單元31的組合結構，圖2B並 示繞線鐵心313。 々 定子單元31更可具有複數導磁元件314,導磁元件 3=係壞設於該等定子鐵心、311，並設置於線_犯與轉 子單元32之間。其中，定子鐵心311具有複數凹槽G，導 314係分別設置於該等凹槽⑼。在本實施例中， 蠹疋子單兀31更具有複數第一支持元件315，第一支持元件 ^分別設置於_〇内，且導磁元件314係分別固定於 一支持元件315。為了清楚說明導磁元件314之位置， - 圖2B並未顯示第一支持元件315。 轉子單幻2係環設於定子單元31。轉子單元32具有 轉子鐵心321及至少一磁性元件322。於此，係以 早兀32具有複數轉子鐵心321及複數磁性元件322， ❿每一磁性元件322係'分別設置於二轉子鐵心32i之 間為例。 中，轉子單元32更可具有二第二支持元件323。第 、元件323的设置目的是為了固定轉子鐵心321及磁 林Γ牛322，並使其設置於定子單元31之定子鐵心311之 、.、使得一轉子鐵心321夾置一磁性元件322。不過， 圖匕月楚說明轉子鐵心、S21與磁性元件322之相對位置， 得八j未顯不第二支持元件323。另外，轉子鐵心321 糸刀別與定子鐵心311相對設置’而磁性元件似係與線 201203793 圈312相對設置。其中，轉子鐵心321亦可包含導磁材料。 導磁材料例如可為軟磁複合材料。另外，磁性元件322係 為永久磁石。 特別說明的是，為了清楚定子單元31、轉子單元32 與軸心33之間的連結關係，圖2A係顯示軸心33。但是， 轴心33並不包括於轉子單元32内。 請參照圖2C及圖2D所示，以更清楚顯示馬達3之定 子單元31與轉子單元32的結構及其三維磁通。其中，圖 2C為圖2B之前視圖，而圖2D為圖2C中，直線C-C的 剖面示意圖。圖2D之箭頭B的方向顯示定子單元31與轉 子單元32之磁路。 如圖2D所示，馬達3的磁路係由定子鐵心311、轉子 鐵心321、磁性元件322，再穿過轉子鐵心321、定子鐵心 311至繞線鐵心313，以成為一三維之磁通路徑。 請參照圖3A及圖3B示，以說明本發明之馬達具有複 數定子單元及複數轉子單元時的結構。其中，圖3A及圖 3B之馬達4係分別具有三組定子單元41與三組轉子單元 42為例。而圖3A及圖3B的定子單元41係省略了繞線鐵 心及第一支持元件，而轉子單元42係省略了第二支持元 件。 當馬達4具有複數定子單元41時，該等定子單元41 係為相疊，且於徑向上係為錯位設置。於此，二定子單元 41相疊設置時，彼此係相差一電氣角度，在實施上可藉由 各相的繞線鐵心之内壁具有一凹槽，而軸心上對應於該等 201203793 凹槽處設置有凸槽，且凸槽錯位設置，藉由凹槽與凸槽的 配合可讓繞線鐵心固定於軸心，且錯位設置。錯位設置的 目的是為了使馬達4可順利啟動而不會有啟動死角。另 外，當馬達4具有複數轉子單元42時，該等轉子單元42 係為相疊設置，但並不需錯位。因此，使用者可視需要， 將單相之定子單元41與轉子單元42組裝並模組化後，再 組裝成所需相數之馬達（例如三相馬達），提升產品適用 性。 另外，馬達4更可包括一控制電路（圖未顯示），控 制電路可同時驅動定子單元41之線圈412的其中之二。 換言之，控制單元係可同時驅動馬達4的二相線圈。當然， 控制電路也可具有其它的驅動方式，於此。並不加以限制。 請參照圖3C及圖3D所示，圖3C為圖3B之前視圖， 而圖3D為圖3C中，直線D-D的剖面示意圖。其中，圖 3D箭頭£的方向顯示為定子單元41與轉子單元42之磁 路。 在本實施例中，同一時間點，控制電路係同時驅動二 相的定子單元41之線圈412，使二相的定子單元41及轉 子單元42分別產生三維磁通。於此，控制電路係同時驅 動圖3C之上、下二相之定子單元41之線圈412，但中間 相位之定子單元41的線圈412不被驅動。因此，可看出， 上、下二相之定子單元41與轉子單元42係具有三線之磁 通，而中間相位之定子單元41與轉子單元42並沒有。 值得一提的是，本發明之馬達4可藉由定子單元41 201203793 之導磁元件414的設置，使不被控制單元驅動之轉子單元 42 (例如圖3C中間相位轉子單元42)之磁性元件422的 磁力線，可經由導磁元件414的導引而構成閉合磁路 (closed magnetic circuit )，因而避免磁性元件422漏磁而 造成相鄰相位的磁性干擾。因此，導磁元件414的設置也 可提升馬達4的輸出效能。 另外，請參照圖4所示，其為本發明之馬達4組裝完 成的示意圖。馬達4更可包括一轴心43、一殼體44及二 外蓋45。其中，二外蓋45係夾置定子單元41及轉子單元 42，而軸心43係穿設定子單元41、轉子單元42以及二外 蓋45，且於軸心43與外蓋45之間設有軸承（bearing )。 另外，殼體44係分別與轉子單元42及二外蓋45連接。 當控制電路驅動定子單元41之線圈412時，產生之 三維磁路係推動轉子單元42轉動，而轉子單元42又帶動 與其連結之殼體44與外蓋45轉動。另外，軸心43係固 定於定子單元41。 另外，請參照圖5所示，其為本發明之一種電子裝置 5的示意圖。電子裝置5包括一作動單元6以及一馬達7。 電子裝置5例如可為一電動載具或其它電動裝置，例如電 動汽車、電動機車、或電動腳踏車，或是電子玩具、電子 設備等。於此，電子裝置5係以一電動機車為例，然並不 以此為限。 在本實施例中，除了馬達7外，其餘的元件均可視為 本發明之作動單元6，包含輪胎、支架及其它。馬達7係 12 201203793 驅動作動單元6。換言之，當馬達7轉動時，可同時驅動 作動單元6作動。 馬達7包括至少一定子單元、至少一轉子單元。定子 單元具有二定子鐵心及一線圈，線圈設置於該等定子鐵心 之間。轉子單元係環設於定子單元，轉子單元具有至少二 轉子鐵心及至少一磁性元件，磁性元件設置於該等轉子鐵 心之間，並與線圈相對設置，該等轉子鐵心分別與該等定 子鐵心相對設置。 馬達7更可包括一軸心、一殼體及二外蓋75。其中， 軸心係與一車架61連接，殼體係連接轉子單元、外蓋75 及輪胎62。當馬達7轉動時，可驅動作動單元6之輪胎 62作動而使電子裝置5移動。 此外，馬達7的元件與馬達4之相同元件具有相同的 技術特徵，於此不再贅述。 綜上所述，因依據本發明之馬達及電子裝置的轉子單 元係環設於定子單元，且轉子單元之磁性元件係設置於轉 子鐵心之間，並與線圈相對設置。藉此，可使馬達及電子 裝置之轉子單元與定子單元形成三維磁路的結構，使本發 明之馬達及電子裝置具有較高轉矩密度及較少漏磁現象 的優點。另外，磁性元件係設置於二轉子鐵心之間，與習 知永久磁石分別設置於定子鐵心與轉子鐵心之間相較，本 發明之馬達及電子裝置具有較少磁性元件的使用，且可縮 小馬達的體積及重量，使電子裝置輕量化。也因磁性元件 係夾置於二轉子鐵心之間，使本發明之馬達及電子裝置組 13 201203793 裝時，不會因磁性元件的磁力影響，而造成組裝困難， 本發明具有較容易組裝的優點。 以上所述僅為舉例性，而非為限制性者^任何未脫離 本發明之精神與齡，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 二 【圖式簡單說明】 圖1A及圖1B分別為一種習知的馬達結構示意圖； 圖1C為橫向磁通馬達單相之磁力線的路徑示意圖； 圖2A及圖2B分別為本發明較佳實施例之—種馬達之 分解示意圖及組合示意圖； 圖2C為圖2B之前視圖； 圖2D為圖2C中，直線c_c的剖面示意圖； 圖3A及圖3B分別為本發明另一態樣之馬達的分解示 意圖及組合示.意圖； 圖3C為圖3B之前視圖 圖3D為圖3C中，直線〇_D的剖面示意圖； 圖4為本發明之馬達喊完叙示意圖；以及 圖5為本發明之-種電子裝置的示意圖。 【主要元件符號說明】 1、2、31、41 :定子單元 U' lb' 3 '4' 7:馬達 η、311、411:定子鐵心 201203793 12、 312、412 :線圈 13、 313 :繞線鐵心 21、32、42 :轉子單元 22 .磁石 314、414 :導磁元件 315:第一支持元件 321、 421 :轉子鐵心 322、 422:磁性元件 φ 323 :第二支持元件 33、43 :轴心 - 44 :殼體 . 45、75 :外蓋 5:電子裝置 6 :作動單元 61 :車架 62 :輪胎 • A、B、E :方向 C-C、D-D :直線 G :凹槽201203793 VI. Description of the Invention: TECHNICAL FIELD The present invention relates to a motor, and more particularly to a motor and an electronic device using the same. [Prior Art] Due to the continuous use of fossil fuels, resulting in more and more exhaust emissions, the global greenhouse effect is becoming more and more obvious, which also causes global climate anomalies. Therefore, many manufacturers have gradually developed alternative energy sources (such as electric energy). Electric vehicles that replace petrochemical fuels, such as electric vehicles, electric motors, electric bicycles, etc. These will become the most commonly used vehicles in the future. Electric vehicles use electric energy to drive the motors, which in turn drive the tires to rotate. To achieve the goal of mobility' Therefore, the choice of motor is a very important consideration. Conventional permanent magnet motors, whether brushed or brushless, use a radial flux structure or an axial flux structure. Referring to FIG. 1A, it is a schematic structural view of a conventional radial flux motor 1a. Radial flux means that the direction in which the stator coils of the motor generate magnetic lines is perpendicular to the axis of the motor. Since the magnet has a magnet and a large amount of magnetically permeable material inside the radial flux motor, the magnetic circuit design between the magnet and the guide material is limited by the structure of the rotor steel sheet. Frequent magnetic leakage occurs, which limits the torque density of the motor and does not provide a large torque output. Further, as shown in Fig. 1B, it is a schematic structural view of a conventional axial flux motor 201203793 1 b. The axial flux means that the direction of the magnetic line is parallel to the axis of the motor ^ = the coil of the coil produces m ^ . The axial flux motor uses the magnetically permeable material of =, so the phenomenon of magnetic entanglement is less obvious. However, its flat structure is designed to reduce the life of the motor shaft and bearing when rotating. In addition, another type of permanent magnet motor has a transverse flux structure. The motor of the transverse flux can achieve a higher torque density and less magnetic leakage in the magnetic circuit design: advantages And = suitable for use on low-speed, high-torque electric vehicles. ‘’ 乂 ^ as shown in Figure K: ' is a schematic diagram of the path of the single-phase stator single-axis line of the transverse flux motor. Among them, the direction of the arrow A is not the path of the magnetic lines of force. The transverse flux motor includes a stator unit i mr2. The stator unit 1 includes two stator cores, a coil 1 wound core, and the rotor unit 2 includes a rotor core 21 and a long magnet 22. The coil 12 is disposed between the two stator cores U. In addition, the rotor core 21 is provided. The two permanent magnets 22 are disposed opposite to the stator core u, and the two permanent magnets 22 are respectively disposed between the two stators 11 and the two rotors 21, etc. ', and in order to realize the three-dimensional magnetic flux structure of the magnetic flux motor, the rotor core A permanent magnet is placed between each of the 14 magnetic flux lines to make the motor have a three-dimensional magnetic flux structure. Therefore, more permanent magnets 22 are used. Further, since the permanent magnet is placed between the core 11 and the rotor core 14, the group is made magnetic due to the permanent magnet 22, which makes assembly difficult. In addition, this; δ again counts also increases the size and weight of the motor. 201203793 Therefore, how to provide a motor and an electronic device, which can reduce the amount of magnetic components used, can reduce the size and weight of the motor, and has the advantage of easy assembly, has become one of the important topics. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a motor and an electronic device that can reduce the amount of use of a magnetic component, reduce the size and weight of the motor, and have an easy assembly. Device. To achieve the above object, a motor according to the invention comprises at least a certain subunit and at least one rotor unit. The stator unit has two stator cores and a coil, and the coils are disposed between the stator cores. The rotor unit ring is disposed on the stator unit, the rotor unit has at least two rotor cores and at least one magnetic element, and the magnetic element is disposed between the rotor cores and disposed opposite to the coils, and the rotor cores are respectively disposed opposite to the stator cores . In an embodiment of the invention, the stator unit further has a wound core, and the stator core and the coil loop are disposed on the wound core. In an embodiment of the invention, the stator unit further has a plurality of magnetic conductive members, and the ring is disposed on the stator cores and disposed between the coil and the rotor unit. In an embodiment of the invention, the stator cores have a plurality of recesses, and the magnetically conductive elements are respectively disposed in the recesses. In one embodiment of the invention, when the motor has a plurality of stator units, the stator units are stacked and offset in a radial direction. In an embodiment of the invention, when the motor has a plurality of rotor units, the rotor units are arranged in a stack. 201203793 In one embodiment of the invention, the motor further includes a control circuit that simultaneously drives two of the coils of the stator units. In an embodiment of the invention, the motor further includes a housing and a shaft. The housing is coupled to the rotor unit. The shaft is threaded through the stator unit and the rotor unit. To achieve the above object, an electronic device in accordance with the present invention includes an actuating unit and a motor. The motor drives the actuating unit and includes at least one stator unit, at least one rotor unit, a housing and an axis. The stator unit Φ has two stator cores and a coil, and the coil is disposed between the stator cores. The rotor unit ring is disposed on the stator unit, the rotor unit has at least two rotor cores and at least one magnetic component, and the magnetic component is disposed between the rotor cores and disposed opposite to the coils, and the rotor cores are respectively connected to the stator cores Relative settings. The housing is coupled to the rotor unit. The shaft is threaded through the stator unit and the rotor unit. The housing is coupled to the rotor unit. As described above, the rotor unit of the motor and the electronic device according to the present invention is provided in the stator unit, and the magnetic elements of the rotor unit are disposed between the rotary cores and disposed opposite to the coil. Thereby, the structure of the three-dimensional magnetic circuit of the rotor unit and the stator unit of the motor and the electronic device can be realized, and the motor and the electronic device of the present invention have the advantages of high torque density and less magnetic leakage. In addition, the magnetic element is disposed between the two rotor cores, and the conventional permanent magnet is disposed between the stator core and the rotor core, respectively. * The motor and the electronic device of the present invention have fewer magnetic components, and the motor can be reduced. The volume and weight make the electronic device lightweight. Also, since the magnetic component is interposed between the two rotor cores, the motor and the electronic device group 201203793 of the present invention cause assembly difficulties, so that I does not affect the magnetic force of the magnetic component, and the invention has the advantage of being easy to assemble. . [Embodiment] Hereinafter, a motor and an electronic device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described. Please refer to FIG. 2A and FIG. 2B, which are respectively an exploded schematic view and a combined schematic view of a motor 3 according to a preferred embodiment of the present invention. The motor 3 includes a =-stator unit 31 and at least one rotor unit 32. In order to clearly illustrate the structure of the motor 3, Figs. 2A and 2B are exemplified by a certain subunit and a rotor single or single phase. Of course, in practical applications, multiple sets of stators and rotor units can be used, and a multi-phase control is used to form a motor. The motor 3 of the present invention can be applied to drive electric equipment such as electric vehicles, electric motors f, or electric bicycles, or for power applications having low rotational speed but high torque. The stator unit 31 has two stator core buckles and a coil 312, and the coils 312 are disposed between the stator cores 311. Here, the two stator cores are disposed in parallel and sandwich the coil 312 _. The stator core 311 comprises a magnetic conductive material, such as a soft magnetic composite material (SMC), and the material thereof may be selected from the group consisting of pure iron, recorded, starting metal, iron-alloyed alloy, iron-recorded alloy, and axial alloy. , iron-based amorphous alloy, iron-based nanocrystalline alloy, soft magnetic oxygen n (four) pulverized powder and combinations thereof. In addition, the die unit 31 may further have a winding core 313, and the stator 201203793 iron 311 and the coil 312 are ring-connected to the winding core 313. In other words, the squall iron 313 is disposed in the middle portion of the stator core 311 and the coil 312. In order to clearly define the combined structure of the subunits 31, Fig. 2B shows the wound core 313. The stator unit 31 may further have a plurality of magnetic conductive elements 314 which are disposed on the stator cores 311 and disposed between the line and the rotor unit 32. The stator core 311 has a plurality of grooves G, and the guides 314 are respectively disposed on the grooves (9). In this embodiment, the die unit 31 further has a plurality of first support members 315, the first support members ^ are respectively disposed in the _ ,, and the magnetic conductive members 314 are respectively fixed to the support member 315. To clearly illustrate the location of the magnetically permeable element 314, - the first support element 315 is not shown in FIG. 2B. The rotor single magic 2 series ring is provided in the stator unit 31. The rotor unit 32 has a rotor core 321 and at least one magnetic member 322. Here, the early cymbal 32 has a plurality of rotor cores 321 and a plurality of magnetic elements 322, and each of the magnetic elements 322 is disposed between the two rotor cores 32i as an example. The rotor unit 32 may further have two second support members 323. The first element 323 is provided for fixing the rotor core 321 and the magnetic forest yoke 322, and is disposed on the stator core 311 of the stator unit 31 so that a rotor core 321 sandwiches a magnetic member 322. However, the figure shows the relative positions of the rotor core, S21 and the magnetic member 322, so that the second support member 323 is not shown. Further, the rotor core 321 is not disposed opposite to the stator core 311, and the magnetic element is disposed opposite to the line 201203793 circle 312. The rotor core 321 may also include a magnetically permeable material. The magnetically permeable material can be, for example, a soft magnetic composite material. Further, the magnetic member 322 is a permanent magnet. In particular, in order to clarify the connection relationship between the stator unit 31, the rotor unit 32, and the shaft center 33, FIG. 2A shows the shaft center 33. However, the shaft center 33 is not included in the rotor unit 32. 2C and 2D, the structure of the stator unit 31 and the rotor unit 32 of the motor 3 and its three-dimensional magnetic flux are more clearly shown. 2C is a front view of FIG. 2B, and FIG. 2D is a cross-sectional view of the line C-C in FIG. 2C. The direction of the arrow B of Fig. 2D shows the magnetic circuit of the stator unit 31 and the rotor unit 32. As shown in Fig. 2D, the magnetic circuit of the motor 3 is composed of a stator core 311, a rotor core 321, and a magnetic member 322, and then passes through the rotor core 321, the stator core 311, and the winding core 313 to form a three-dimensional magnetic flux path. 3A and 3B, the structure of the motor of the present invention having a plurality of stator units and a plurality of rotor units will be described. The motor 4 of Figs. 3A and 3B has three sets of stator units 41 and three sets of rotor units 42, respectively. On the other hand, the stator unit 41 of Figs. 3A and 3B omits the winding core and the first supporting member, and the rotor unit 42 omits the second supporting member. When the motor 4 has a plurality of stator units 41, the stator units 41 are stacked and arranged in a dislocation position in the radial direction. In this case, when the two stator units 41 are stacked one on another, they are different from each other by an electrical angle. In practice, the inner wall of the wound core of each phase has a groove, and the axis corresponds to the groove of the 201203793. The convex groove is provided, and the convex groove is dislocated. The cooperation of the groove and the convex groove allows the winding core to be fixed to the axis and is misaligned. The purpose of the misalignment setting is to allow the motor 4 to start smoothly without a dead angle. In addition, when the motor 4 has a plurality of rotor units 42, the rotor units 42 are arranged in a stack, but need not be misaligned. Therefore, the user can assemble and modularize the single-phase stator unit 41 and the rotor unit 42 as needed, and then assemble the motor into a desired number of phases (for example, a three-phase motor) to improve product suitability. In addition, the motor 4 may further include a control circuit (not shown) that simultaneously drives two of the coils 412 of the stator unit 41. In other words, the control unit can simultaneously drive the two-phase coil of the motor 4. Of course, the control circuit can also have other driving methods, here. There are no restrictions. 3C and 3D, FIG. 3C is a front view of FIG. 3B, and FIG. 3D is a cross-sectional view of the line D-D in FIG. 3C. Here, the direction of the arrow £ of Fig. 3D is shown as the magnetic circuit of the stator unit 41 and the rotor unit 42. In the present embodiment, at the same time point, the control circuit simultaneously drives the coil 412 of the two-phase stator unit 41, so that the two-phase stator unit 41 and the rotor unit 42 respectively generate three-dimensional magnetic flux. Here, the control circuit simultaneously drives the coil 412 of the stator unit 41 above and below the two phases of Fig. 3C, but the coil 412 of the stator unit 41 of the intermediate phase is not driven. Therefore, it can be seen that the upper and lower two-phase stator unit 41 and the rotor unit 42 have a three-wire magnetic flux, and the intermediate phase stator unit 41 and the rotor unit 42 do not. It is worth mentioning that the motor 4 of the present invention can be provided with the magnetic element 422 of the rotor unit 42 (for example, the intermediate phase rotor unit 42 of FIG. 3C) that is not driven by the control unit by the arrangement of the magnetic guiding elements 414 of the stator unit 41 201203793. The magnetic lines of force can be guided by the magnetically conductive element 414 to form a closed magnetic circuit, thereby preventing magnetic leakage of the magnetic element 422 and causing magnetic interference of adjacent phases. Therefore, the arrangement of the magnetic conductive element 414 can also enhance the output efficiency of the motor 4. Further, please refer to Fig. 4, which is a schematic view showing the assembly of the motor 4 of the present invention. The motor 4 further includes a shaft center 43, a housing 44 and two outer covers 45. The second outer cover 45 is provided with the stator unit 41 and the rotor unit 42 , and the shaft 43 is threaded through the setting subunit 41 , the rotor unit 42 and the second outer cover 45 , and is disposed between the shaft center 43 and the outer cover 45 . Bearing (bearing). Further, the casing 44 is connected to the rotor unit 42 and the two outer covers 45, respectively. When the control circuit drives the coil 412 of the stator unit 41, the resulting three-dimensional magnetic circuit drives the rotor unit 42 to rotate, and the rotor unit 42 drives the housing 44 and the outer cover 45 coupled thereto to rotate. Further, the shaft center 43 is fixed to the stator unit 41. In addition, please refer to FIG. 5, which is a schematic diagram of an electronic device 5 of the present invention. The electronic device 5 includes an actuation unit 6 and a motor 7. The electronic device 5 can be, for example, an electric vehicle or other electric device such as an electric car, an electric motor car, or an electric bicycle, or an electronic toy, an electronic device, or the like. Here, the electronic device 5 is exemplified by an electric motor vehicle, but is not limited thereto. In the present embodiment, except for the motor 7, the remaining components can be regarded as the actuating unit 6 of the present invention, including the tire, the bracket and the like. Motor 7 Series 12 201203793 Drives the actuating unit 6. In other words, when the motor 7 is rotated, the actuating unit 6 can be simultaneously actuated. The motor 7 comprises at least a certain subunit, at least one rotor unit. The stator unit has two stator cores and a coil, and the coils are disposed between the stator cores. The rotor unit ring is disposed on the stator unit, the rotor unit has at least two rotor cores and at least one magnetic element, and the magnetic element is disposed between the rotor cores and disposed opposite to the coils, and the rotor cores are respectively opposite to the stator cores Settings. The motor 7 can further include a shaft center, a casing and two outer covers 75. The shaft center is connected to a frame 61, and the casing is connected to the rotor unit, the outer cover 75 and the tire 62. When the motor 7 is rotated, the tire 62 of the actuating unit 6 can be actuated to move the electronic device 5. Further, the components of the motor 7 have the same technical features as the components of the motor 4, and will not be described again. As described above, the rotor unit of the motor and the electronic device according to the present invention is provided in the stator unit, and the magnetic elements of the rotor unit are disposed between the rotor cores and disposed opposite to the coils. Thereby, the structure of the three-dimensional magnetic circuit of the rotor unit and the stator unit of the motor and the electronic device can be realized, and the motor and the electronic device of the present invention have the advantages of high torque density and less magnetic leakage. In addition, the magnetic component is disposed between the two rotor cores, and the conventional permanent magnet is disposed between the stator core and the rotor core, and the motor and the electronic device of the present invention have fewer magnetic components and can reduce the motor. The volume and weight make the electronic device lightweight. Also, since the magnetic component is interposed between the two rotor cores, when the motor and the electronic device group 13 201203793 of the present invention are mounted, the assembly is difficult due to the magnetic force of the magnetic component, and the present invention has the advantage of being easy to assemble. . The above description is intended to be illustrative, and not restrictive, and the invention is intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A and FIG. 1B are respectively schematic views of a conventional motor structure; FIG. 1C is a schematic diagram of a path of a magnetic field of a single phase of a transverse flux motor; FIGS. 2A and 2B are respectively a preferred embodiment of the present invention. 2C is a front view of FIG. 2B; FIG. 2D is a cross-sectional view of a straight line c_c in FIG. 2C; FIG. 3A and FIG. 3B are respectively exploded schematic views of the motor of another aspect of the present invention; 3C is a front view of FIG. 3B, FIG. 3D is a cross-sectional view of a straight line 〇_D in FIG. 3C; FIG. 4 is a schematic diagram of the motor of the present invention; and FIG. Schematic diagram of the device. [Description of main component symbols] 1, 2, 31, 41: stator unit U' lb' 3 '4' 7: motor η, 311, 411: stator core 201203793 12, 312, 412: coil 13, 313: wound core 21, 32, 42: Rotor unit 22. Magnet 314, 414: Magnetically conductive element 315: First support element 321, 421: Rotor core 322, 422: Magnetic element φ 323: Second support element 33, 43: Axis - 44: Housing. 45, 75: Cover 5: Electronic device 6: Actuating unit 61: Frame 62: Tire • A, B, E: Direction CC, DD: Straight line G: Groove